Ship construction



c. AHOLA.

SHIP CONSTRUCTION.

APPLICATION FILED DEC. 27, I920.

Patented May 16, 1922.

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SHIP CONSTRUCTION;

APPLICATION FILED QEC.27, 1920.

Patented May 16, 1922.

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SHIP CONSTRUCHON. APPLICATION FILED DEC.27, 1920.

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c. AHOLA. SHIP CONSTRUCTION. APPLICATION FILED DEC.27, I920. 1,416,155. P t nted May 16,1922.

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CHARLES AI-IOLA, 0F DETROIT. MICHIGAN. I

SHIP CONSTRUCTION.

Specification of Letters Patent. Pateiqted Flay 16, 19,22.

Application filed December 27, 1920. Serial n6. 433,508.

T 0 all to 710m 2' may concern: I

Be it known that I, CHARLES AHOLA, citizen of Finland, resid ng at have invented certain new and useful Improvements in Ship Constructions, of which the following is a specification.

This invention relates to improvements in ship construction. The principal object is to provide an 'indestructible'ship, immune from disastrous attack by submarines or mines in time of war, and safe in event of collision. The invention provides a ship having a sectional keel yieldingly spaced from thehull of the ship, the sections of the keel being relatively movable to take up shock, and the sections being secured to the hull so that they may be readily released therefrom. Shock absorbing mechanism is disposed about the hull, both above and below the water line.

With the foregoing and such other objects in view as will be apparent from the description, my invention resides in the novel construction combination and arrangement of parts hereinafter described and claimed, and illustrated in the accompanying drawings, in which;

Fig. l, is a side elevation, parts being broken away,

Fig. 2, is'a top plan View,

Fig. 3, is a side elevation, with the keel in section,

Fig. 4:, is an end view of the ship,

Fig. 5, is an irregular vertical section through the hull protecting mechanism.

Described in detail, numeral 1 denotes the hull of theship and 2 the cabin. The hull 1 rests mainly on a base 3 carrying a marginal platform 4 having the fore and aft spool like deflectors 5 and 6, which are further supported by the upper platform 7 running entirely around the ship. At both ends of the ship are disposed upper and lower sets of vertical tubular deflectors 8 and 9, at each side of the hull, said sets being separated by a spacer plate 10. Between these sets of deflectors 8 and 9. I provide two cover plates 11 and 12, spaced slightly from one another and connected by a stout spring hinge 13, to platform 4, said hinge on each cover plate, serving to retain the free edges of the cover plates in frictional engagement with platform 7. Inside each cover plate, are disposed a plurality of horizontal Detroit, in the county of l/Vayne and State of Michigan,

laterally opening sockets rods 14;, having their ends embedded in uprights '15 which extend from the cover plates to the hull, and upon'each *rod14, a coil spring 16 is arranged with the ends thereof abutting or being secured to, the uprights 15. Deflectors 5, 6, 8 and 9 serve, in. the event of collision, to cause the object, struck to glance off to one side;

The keel comprises a plurality of sections, including a central section 17 and upwardly stepped side sections 18 rising therefrom. The sections extend longitudinally of the ship and are connected by a bridge plate 19 secured on the faces of'the smaller sections 18. Each section is formed with a plurality of sockets 20, registering with perforations 21 in the bridge plate 19. The base 3 is formed with lateral depending portions 22 similar to, and at each side of, the keel sections, which portions are formed with having hinged cover plates 20% In each socket 20 is disposed an expansion spring 23 extending through the mouth of the socket and perforation in the bridgeplate and abutting a base plate 24 fastened to the under side of base 3, said sections being engaged by cables 25 which pass at one end of the ship through a conduit 26, to a binding post 27, and at the other end through a conduit 28, 29 and are wound on a drum 30 in a housing 31, said drum being held in adjusted position by a latch 32.

The several keel sections are formed with registering apertures 33 provided with covers 34, and in said apertures, and extending downwardly through the keel sections, are the leaves of the hinges 35 whereby the keel sections are adjustably secured to each other and to the bridge plate 19, said hinges being formed with longitudinal slots 35 to slidably receive the hinge screws and perunit relative movement of the sections. Plates 19 and 24 are spaced by the springs 23, permitting the keel as a'whole to have a vertical movement relative to the hull, making a shock absorber of the keel. The side walls of the larger sections18 are formed with slots 36 in which blocks 37 are disposed. These blocks are carried by the keel sections and are smaller than the slots to permit rela tive movement of the keel sections. Blocks 38, carried upon pins 39 embedded in the adapted to engage with these members or the bridge plate 19 to limit the relative movement of the keel sections. The keel may be released from the hull, if damaged, by severing the cables 25. A further shock absorbing mechanism is "formed by laterally extending brackets L0 at the upper side edges of the hull 1, between which, and the platform 7 coil compression springs 41 are disposed on guide bolts 42.

I claim 1. In a ship, a hull, a keel, and means adjnstably connecting said keel and bull Where by said keel is yieldingly spaced from the hull.

2. In a ship, a hull, a sectional keel, the sections of said keel being relatively adjustable, and means for adjustably securing said keel as a unit, to the hull.

3. In a ship, a hull, a sectional keel adjustably and detachably secured thereto, the sections of said keel being relatively adjustable and stepped.

A. In a ship, a hull, a base for said hull, lateral depending portions on said base, a keel disposed between said portions and means for adjustably securing said keel to the hull.

5. In a ship, a hull, a base thereon having lateral depending portions at opposite sides, a sectional keel disposed between said portions, said sections being relatively adjustable, and means for adjustably securing said keel to the base.

6. In a ship, a hull, a base therefor having lateral depending portions provided with sockets, a sectional keel disposed between said: portions, the sections of said keel being formed with sockets and being relatively adjustable, a perforated bridge plateconnecting said keel sections, springs disposed in said sockets and through the perforations o'ii saidbridgeplate and abutting said base, and cables connectingasaid springs and the hull,

In testimony that I claim the foregoing as my own I have hereto aflixed my signature in the presence of two subscribing Witnesses.

' CHARLES AI-IOLA.

Witnesses KA L A. BLOOM, OsooR PORS. 

